CN114990325A - Strip steel loop control method and device - Google Patents
Strip steel loop control method and device Download PDFInfo
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- CN114990325A CN114990325A CN202210595378.5A CN202210595378A CN114990325A CN 114990325 A CN114990325 A CN 114990325A CN 202210595378 A CN202210595378 A CN 202210595378A CN 114990325 A CN114990325 A CN 114990325A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 188
- 239000010959 steel Substances 0.000 title claims abstract description 188
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000000137 annealing Methods 0.000 claims abstract description 107
- 238000004519 manufacturing process Methods 0.000 claims abstract description 58
- 238000004140 cleaning Methods 0.000 claims description 25
- 238000003466 welding Methods 0.000 claims description 25
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- 238000004590 computer program Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
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- 230000004075 alteration Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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Abstract
The invention discloses a strip steel loop control method and a device, which are applied to an annealing production line, wherein the method comprises the following steps: acquiring the residual target time of the strip steel loop reaching a target state, wherein the target state is a full-load or no-load state of the strip steel loop; obtaining the residual traction time of the traction processing equipment for traction of the residual strip steel; obtaining a current time difference according to the residual target time and the residual traction time; judging whether the current time difference is smaller than a preset time or not; if so, controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state; and if not, controlling the annealing production line to operate at the current speed. The control method carries out corresponding control through the judgment of the current time difference and the preset time, can enable the annealing production line to automatically and stably and quickly operate the strip steel loop to a target state in the annealing process, and realizes the accurate control of the strip steel loop.
Description
Technical Field
The application relates to the technical field of strip steel loop control, in particular to a strip steel loop control method and device.
Background
The annealing products of the continuous annealing production line of the cold rolling mill cover various steel series such as low-carbon steel, plain carbon steel, high-strength steel and the like, the thickness range of the products is 0.4-2.5mm, and the width of the finished products is 750-1580 mm. The related equipment of the annealing production line is mainly divided into an uncoiler, a welding machine, a cleaning machine, an inlet loop, an annealing furnace, an outlet loop, a leveling machine, an oiling machine, a coiling machine and the like in sequence, wherein the uncoiler is mainly used for uncoiling strip steel, the cleaning machine is mainly used for cleaning emulsion, dirt, scrap iron and the like on the surface of the strip steel, the inlet loop and the outlet loop are used as strip steel loops and are used for storing the strip steel, the normal speed production of the annealing furnace is ensured, the buffering effect is achieved, the normal production of a process section in the same welding process is ensured, and the normal state of the annealing production line is in the full-loop process.
However, in practical application, the operation speed of the annealing production line is based on the annealing furnace, and the operation speed of the strip steel loop needs to be adjusted by manual control, so that automatic and accurate control cannot be performed. For example, in the inlet loop, after a welding machine finishes welding front and back two coils of strip steel, the speed of an uncoiler is increased, the inlet loop is in a loop charging state, the loop charging speed is generally set by an operator according to experience, and after the loop charging reaches 100%, the speed of the uncoiler, the speed of the inlet loop and the speed of an annealing furnace reach balance, so that normal production is realized. However, once the bushing punching speed set by the operator is low, the bushing punching cannot be completed, the welding of the next coil of strip steel is performed, and at this time, the inlet loop quantity does not reach 100%, the capacity requirement of the annealing furnace cannot be completely met, and the production line shutdown risk exists. The operator has higher set speed, and the strip steel quickly passes through the cleaning section, so that the strip steel surface cleaning is not favorable.
Therefore, how to realize the accurate control of the strip steel loop is a technical problem to be solved urgently at present.
Disclosure of Invention
The method and the device for controlling the strip steel loop realize the accurate control of the strip steel loop.
The embodiment of the invention provides the following scheme:
in a first aspect, an embodiment of the present invention provides a strip steel loop control method, which is applied to an annealing production line, where the annealing production line includes a traction processing device, a strip steel loop, and an annealing furnace, where the traction processing device is used to weld and clean a strip steel before annealing or smooth and oil-coat the strip steel after annealing, and the method includes:
acquiring the residual target time of the strip steel loop reaching a target state, wherein the target state is a full-load or no-load state of the strip steel loop;
obtaining the residual traction time of the traction processing equipment for traction of the residual strip steel;
obtaining a current time difference according to the residual target time and the residual traction time;
judging whether the current time difference is smaller than a preset time or not;
if so, controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state;
and if not, controlling the annealing production line to operate at the current speed.
In an optional embodiment, the traction processing device is used for welding and cleaning before traction strip annealing, the strip loop is an inlet loop connecting an outlet of the traction processing device and an inlet of the annealing furnace, the target state is a full load state of the strip loop, and the obtaining of the remaining target time for the strip loop to reach the target state includes:
acquiring the inlet loop amount and the inlet loop drawing speed of the inlet loop;
acquiring the uncoiling traction speed of an uncoiler in the traction processing equipment;
and obtaining the residual target time of the inlet loop according to the inlet loop quantity, the inlet loop drawing speed and the uncoiling traction speed.
In an alternative embodiment, said obtaining said target time remaining for said inlet loop based on said inlet loop amount, said inlet withdrawal speed and said uncoiling pull speed further comprises:
acquiring the preset full load capacity of the full load state;
and updating the residual target time according to the preset full load.
In an alternative embodiment, said obtaining said target time remaining for said inlet looper as a function of said inlet looper quantity, said inlet draw speed and said unwind draw speed comprises:
according to the formula
Obtaining the residual target time, wherein a is the inlet loop quantity, v is the inlet loop drawing speed, and v is 0 The unwinding drawing speed.
In an optional embodiment, the traction processing device is used for welding cleaning before traction strip annealing, and the obtaining of the remaining traction time of the traction processing device for traction of the remaining strip comprises:
acquiring the uncoiling traction speed of an uncoiler in the traction processing equipment and the current residual strip steel;
and obtaining the residual traction time of the uncoiler according to the uncoiling traction speed and the current residual strip steel.
In an alternative embodiment, the target state is a full load state of the steel strip loop, and the preset time is 30-60 seconds.
In an optional embodiment, the traction processing device is configured to pull the strip steel to be subjected to smooth oiling after annealing, the strip steel loop is an outlet loop connecting an outlet of the annealing furnace and an inlet of the traction processing device, the target state is an idle state of the strip steel loop, and the obtaining of the remaining target time for the strip steel loop to reach the target state includes:
acquiring the outlet loop amount and the outlet loop drawing speed of the outlet loop;
acquiring the coiling traction speed of a coiling machine in the traction treatment equipment;
and obtaining the residual target time of the outlet loop according to the outlet loop quantity, the outlet loop drawing speed and the coiling traction speed.
In a second aspect, an embodiment of the present invention further provides a strip steel loop control device, which is applied to an annealing production line, where the annealing production line includes a traction processing device, a strip steel loop, and an annealing furnace, the traction processing device is used to pull strip steel to perform welding cleaning before annealing or to perform smooth oiling after annealing, and the device includes:
the first acquisition module is used for acquiring the residual target time of the strip steel loop reaching a target state, wherein the target state is a full-load or no-load state of the strip steel loop;
the second acquisition module is used for acquiring the residual traction time of the traction processing equipment for traction of the residual strip steel;
the first obtaining module is used for obtaining a current time difference according to the residual target time and the residual traction time;
the judging module is used for judging whether the current time difference is smaller than the preset time or not;
the first control module is used for controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state when the current time difference is smaller than the preset time;
and the second control module is used for controlling the annealing production line to operate at the current speed when the current time difference is not less than the preset time.
In a third aspect, embodiments of the present invention also provide an electronic device, including a processor and a memory, the memory being coupled to the processor, the memory storing instructions that, when executed by the processor, cause the electronic device to perform the steps of the method of any one of the first aspects.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method according to any one of the first aspect.
Compared with the prior art, the strip steel loop control method and the strip steel loop control device provided by the invention have the following advantages:
the method for controlling the strip steel loop is applied to an annealing production line, when welding cleaning is carried out on strip steel before annealing or leveling oil coating is carried out after annealing in the annealing production line, the residual target time for the strip steel loop to reach a target state is obtained, the residual traction time for traction processing equipment to pull the residual strip steel is obtained, a current time difference is obtained according to the residual target time and the residual traction time, when the current time difference is less than preset time, the running speed of the strip steel loop is slower than that when the current state distance reaches the target state, and the annealing production line is controlled to run at the highest speed until the strip steel loop reaches the target state; when the current time difference is not less than the preset time, it is reasonable to show that the current state distance of the strip steel loop reaches the target state running speed, the control annealing production line runs at the current speed, the corresponding control is carried out through the current time difference and the judgment of the preset time, the annealing production line can automatically and stably and quickly run the strip steel loop to the target state in the annealing process, the accurate control of the strip steel loop is realized, the stop times of the annealing production line can be reduced, the strip steel cleaning quality is improved simultaneously, and the service life and the production efficiency of the annealing production line are improved.
Drawings
In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present specification, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a flow chart of a strip steel loop control method provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a partial annealing line according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a strip steel loop control device provided in an embodiment of the present invention.
Description of reference numerals: 1-a first uncoiler, 2-first strip steel, 3-a second uncoiler, 4-second strip steel, 5-a welding machine, 6-a cleaning machine and 7-an inlet loop.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the scope of protection of the embodiments of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a strip steel loop control method provided in an embodiment of the present invention, and is applied to an annealing production line, where the annealing production line includes a traction processing device, a strip steel loop, and an annealing furnace, the traction processing device is used to perform welding cleaning before traction strip steel annealing or perform smooth oiling after annealing, and the method includes:
s11, obtaining the remaining target time of the strip steel loop reaching the target state, wherein the target state is the full load or no load state of the strip steel loop.
Specifically, in the strip steel annealing production line, the strip steel is welded and cleaned before annealing, emulsion, dirt, scrap iron and the like on the surface of the strip steel are cleaned, and then the strip steel is annealed by an annealing furnace, leveled and oiled and then curled into a coil. When the traction processing equipment is used for welding and cleaning before traction strip steel annealing, please refer to fig. 2, the traction processing equipment comprises a first uncoiler 1, a second uncoiler 3, a welding machine 5 and a cleaning machine 6, the strip steel loop is an inlet loop 7, the first uncoiler 1 is used for uncoiling the first strip steel 2, the second uncoiler 3 is used for uncoiling the second strip steel 4, and the welding machine 5 is used for welding the first strip steel 2 and the second strip steel 4 end to end, so that the annealing production line can continuously produce.
It can be understood that when the traction treatment equipment is used for welding and cleaning before traction strip steel annealing, the target state required by the strip steel loop is a full-load state, the remaining target time is the time from the current time of the inlet loop 7 to 100% of the loop filling amount, the full-load state can meet the continuous production of the annealing furnace, and even if the first strip steel 2 and the second strip steel 4 are welded, sufficient strip steel is still arranged in the inlet loop 7 for annealing treatment; when the traction processing equipment is used for traction of smooth oiling of annealed strip steel, the target state required by the strip steel loop is in an idle state, and the remaining target time is the time from the current time of the outlet loop to the time of reaching the sleeve filling amount of 0%, so that the annealed, smooth and oiled strip steel is quickly wound, and the backlog of the strip steel is reduced.
In a specific embodiment, the traction treatment device is used for welding and cleaning before traction strip steel annealing, the strip steel loop is an inlet loop which is used for connecting an outlet of the traction treatment device and an inlet of an annealing furnace, the target state is a full-load state of the strip steel loop, and the residual target time for the strip steel loop to reach the target state is acquired, and the method comprises the following steps:
acquiring the inlet loop amount and the inlet loop drawing speed of the inlet loop; acquiring the uncoiling traction speed of an uncoiler in traction treatment equipment; and obtaining the residual target time of the inlet loop according to the inlet loop quantity, the inlet loop drawing speed and the uncoiling traction speed.
Specifically, the inlet loop quantity is the storage quantity of the strip steel in the inlet loop at present, and the strip steel capable of being stored in the inlet loop has a certain upper limit, so that the inlet loop quantity can be represented by the percentage of the current loop quantity in the total loop quantity; the inlet loop drawing speed is the running speed of the strip steel at the outlet of the inlet loop, namely the speed of the strip steel entering the annealing furnace from the inlet loop. The inlet loop quantity and the inlet loop drawing speed can be obtained through a sensor on an annealing production line, the inlet loop structure comprises two groups of parallel rotating rollers, band steel is arranged in a reciprocating mode around the rotating rollers, the distance between the two groups of rotating rollers is adjusted through traction of a steel wire rope, the steel wire rope is wound on a winding roller, and the length of the inlet loop storage band steel can be adjusted by controlling the forward and reverse rotation of the winding roller, so that the inlet loop quantity can be accurately calculated by reading the current rotating number of turns of an encoder on the winding roller; the speed of the inlet sleeve can be obtained by acquiring the speed of the roller through a speed sensor; similarly, the uncoiling traction speed can also be obtained by acquiring the rotating speed of the uncoiler through a speed sensor.
The uncoiling traction speed represents the current speed of the strip steel entering the inlet loop, the inlet loop drawing speed represents the current speed of the strip steel leaving the inlet loop, the inlet loop amount represents the current storage amount of the strip steel in the inlet loop, and the total storage amount of the inlet loop has an upper limit, so that the residual target time can be calculated through the inlet loop amount, the inlet loop drawing speed and the uncoiling traction speed.
In a specific embodiment, after obtaining the target time remaining for the inlet loop based on the inlet loop amount, the inlet withdrawal speed, and the unwinding pull speed, the method further comprises:
acquiring a preset full load capacity of a full load state; and updating the remaining target time according to the preset full load.
Specifically, the inlet loop is used for buffering the flow change of the strip steel between the uncoiler and the annealing furnace, the preset full load amount can be set to be 90% -100% of the total loop amount of the strip steel stored in the inlet loop according to actual conditions, the less the preset full load amount is set, the less the updated residual target time is relative to the initial residual target time. The upper limit of the strip steel stored in the inlet loop can be flexibly controlled by presetting the full-load quantity, and the residual target time can be accurately acquired.
In a particular embodiment, obtaining a target time remaining for the entry loop based on the entry loop amount, the entry draw speed, and the unwind draw speed comprises:
according to the formula
Obtaining the residual target time, wherein a is the inlet loop quantity, v is the inlet loop drawing speed 0 The unwinding drawing speed is shown.
Specifically, 1-a is strip steel which needs to be stored when the inlet loop reaches a target state, and the residual target time can be accurately calculated through the formula; similarly, by the formula:
In a specific implementation mode, the traction processing equipment is used for dragging the flat oiling after the annealing of the strip steel, the strip steel loop is an outlet loop which is connected with an outlet of the annealing furnace and an inlet of the traction processing equipment, the target state is an idle state of the strip steel loop, and the residual target time for the strip steel loop to reach the target state is acquired, and the method comprises the following steps:
acquiring the outlet loop amount and the outlet loop drawing speed of the outlet loop; acquiring the coiling traction speed of a coiling machine in traction treatment equipment; and obtaining the residual target time of the outlet loop according to the outlet loop quantity, the outlet loop drawing speed and the coiling traction speed.
Specifically, when the traction processing equipment is used for dragging the annealed strip steel to be leveled and oiled, the traction processing equipment comprises a leveling machine, an oiling machine and a coiling machine, the annealed strip steel is leveled by the leveling machine, oiled by the oiling machine and finally coiled by the coiling machine. The outlet loop amount is the current storage amount of the strip steel in the outlet loop, the outlet loop drawing speed is the running speed of the strip steel at the outlet of the outlet loop, and the residual target time of the outlet loop reaching the target state can be accurately calculated through the outlet loop amount, the outlet loop drawing speed and the coiling traction speed. It will be appreciated by those skilled in the art that the corresponding control method in the inlet loop is equally applicable to the control of the outlet loop, with the difference that the target state of the outlet loop is an unloaded state. The remaining target time is acquired and the process proceeds to step S12.
And S12, obtaining the residual traction time of the traction processing equipment for traction of the residual strip steel.
Specifically, the remaining drawing time is the time for the drawing processing device to draw the remaining strip steel, taking the example of welding and cleaning before the drawing processing device is used for drawing the strip steel for annealing as an example, please continue to refer to fig. 2, a first uncoiler uncoils a first strip steel, a second uncoiler uncoils a second strip steel, after the first uncoiler completes uncoiling of all the first strip steel, a welder welds the head of the second strip steel with the tail of the first strip steel so that the strip steel is continuously annealed by an annealing furnace, and when the first uncoiler uncoils, the remaining drawing time is the time for the first uncoiler to uncoil the remaining first strip steel; when the second uncoiler uncoils, the residual traction time is the time for the second uncoiler to uncoil the residual second strip steel.
In a specific embodiment, the traction processing equipment is used for welding cleaning before the traction strip steel is annealed, and the method for acquiring the residual traction time of the traction processing equipment for traction of the residual strip steel comprises the following steps:
acquiring the uncoiling traction speed of an uncoiler in traction treatment equipment and the current residual strip steel; and obtaining the residual traction time of the uncoiler according to the uncoiling traction speed and the current residual strip steel.
Specifically, the uncoiling traction speed can be obtained by measuring through a speed measuring instrument in the uncoiling process of the uncoiler; the total length of a strip coil is usually fixed, or within a certain length range, the current remaining strip can be calculated according to the total strip length and the uncoiled strip length, so that the remaining drawing time t 0 Can be calculated by the following formula:
wherein L is the current residual strip steel v 0 The unwinding drawing speed is shown. The process proceeds to step S13 after acquiring the remaining pulling time.
And S13, obtaining the current time difference according to the residual target time and the residual traction time.
Specifically, the current time difference Δ t is the remaining target time t and the remaining traction time t 0 Can be determined by the formula: Δ t ═ t 0 -t calculation acquisition. The current time difference is obtained and the process proceeds to step S14.
And S14, judging whether the current time difference is less than the preset time.
Specifically, the preset time represents the ideal time for the steel strip living sleeve to reach the target state in the current state, and can be determined according to the experience of technicians or through a calibration test. The target state is the full load state of the strip steel loop, and the preset time is 30-60 seconds.
And S15, if yes, controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state.
Specifically, when the current time difference is smaller than the preset time, it is indicated that the running speed is slower when the current state distance of the strip steel loop reaches the target state, and the annealing production line is controlled to run at the highest speed until the strip steel loop reaches the target state, so that adverse effects on the annealing production line caused by the delay are eliminated. Taking a strip steel loop as an inlet loop as an example, the current time difference is less than the preset time, which indicates that the loop filling process of the inlet loop is more delayed, and the annealing production line runs at the highest speed to complete loop filling at the highest speed, so that the inlet loop reaches a full load state, the problems of the production line such as improvement of the surface cleaning quality of strip steel and the like due to evacuation and shutdown of the inlet loop are effectively avoided, and the stable production of the production line is ensured.
And S16, if not, controlling the annealing production line to operate at the current speed.
Specifically, the current time difference is not less than the preset time, which indicates that the current state distance of the strip steel loop reaches the target state running speed reasonably, and the annealing production line is controlled to run at the current speed.
Based on the same inventive concept as the control method, an embodiment of the present invention further provides a strip steel loop control device, which is applied to an annealing production line, where the annealing production line includes a traction processing device, a strip steel loop and an annealing furnace, the traction processing device is used for welding and cleaning before traction strip steel annealing or leveling and oiling after annealing, please refer to fig. 3, and the device includes:
a first obtaining module 301, configured to obtain a remaining target time for the strip steel loop to reach a target state, where the target state is a full load or no load state of the strip steel loop;
a second obtaining module 302, configured to obtain remaining traction time for the traction processing device to pull the remaining strip steel;
a first obtaining module 303, configured to obtain a current time difference according to the remaining target time and the remaining traction time;
a determining module 304, configured to determine whether the current time difference is smaller than a preset time;
a first control module 305, configured to control the annealing production line to run at a highest speed until the strip steel loop reaches the target state when the current time difference is smaller than a preset time;
and a second control module 306, configured to control the annealing production line to operate at the current speed when the current time difference is not less than the preset time.
Based on the same inventive concept as the control method, an embodiment of the present invention also provides an electronic device, including a processor and a memory, the memory being coupled to the processor, the memory storing instructions that, when executed by the processor, cause the electronic device to perform the steps of any one of the control methods.
Based on the same inventive concept as the control method, the embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored, which, when executed by a processor, implements the steps of any one of the methods of the control method.
The technical scheme provided by the embodiment of the invention at least has the following technical effects or advantages:
the strip steel loop control method is applied to an annealing production line, when welding cleaning is carried out on strip steel before annealing or leveling oiling is carried out after annealing in the annealing production line, the residual target time for the strip steel loop to reach the target state is obtained, the residual traction time for traction treatment equipment to pull the residual strip steel is obtained, the current time difference is obtained according to the residual target time and the residual traction time, when the current time difference is less than the preset time, the fact that the running speed of the strip steel loop is slower when the current state distance reaches the target state is shown, and the annealing production line is controlled to run at the highest speed until the strip steel loop reaches the target state; when the current time difference is not less than the preset time, it is comparatively reasonable to explain that the current state distance of belted steel loop reaches target state functioning speed, the line is produced with current speed operation to control annealing, correspond control again through the current time difference and the judgement of presetting the time, can make annealing produce the line and stabilize rapid movement to target state with belted steel loop in annealing process automatically, the accurate control of belted steel loop has been realized, the number of times of shutting down of line is produced in reducible annealing, improve belted steel cleaning quality simultaneously, improve the service life and the production efficiency of annealing production line.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (modules, systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The strip steel loop control method is characterized by being applied to an annealing production line, wherein the annealing production line comprises a traction processing device, a strip steel loop and an annealing furnace, the traction processing device is used for traction welding cleaning before strip steel annealing or leveling oiling after annealing, and the method comprises the following steps:
acquiring the residual target time of the strip steel loop reaching a target state, wherein the target state is a full-load or no-load state of the strip steel loop;
obtaining the residual traction time of the traction processing equipment for traction of the residual strip steel;
obtaining a current time difference according to the residual target time and the residual traction time;
judging whether the current time difference is smaller than a preset time or not;
if so, controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state;
and if not, controlling the annealing production line to operate at the current speed.
2. The strip steel loop control method according to claim 1, wherein the traction processing device is used for welding and cleaning before traction strip steel annealing, the strip steel loop is an inlet loop connecting an outlet of the traction processing device and an inlet of the annealing furnace, the target state is a full load state of the strip steel loop, and the obtaining of the remaining target time for the strip steel loop to reach the target state includes:
acquiring the inlet loop amount and the inlet loop drawing speed of the inlet loop;
acquiring the uncoiling traction speed of an uncoiler in the traction processing equipment;
and obtaining the residual target time of the inlet loop according to the inlet loop quantity, the inlet loop drawing speed and the uncoiling traction speed.
3. The strip steel loop control method as claimed in claim 2, further comprising, after obtaining the target time remaining for the inlet loop based on the inlet loop amount, the inlet withdrawal speed, and the uncoiling pulling speed:
acquiring a preset full load amount of the full load state;
and updating the residual target time according to the preset full load.
4. The strip steel loop control method as claimed in claim 2, wherein said obtaining said target time remaining for said inlet loop based on said inlet loop amount, said inlet withdrawal speed and said uncoiling draft speed comprises:
according to the formula
Obtaining the residual target time, wherein a is the inlet loop quantity, v is the inlet loop drawing speed, and v is 0 The unwinding drawing speed.
5. The strip steel loop control method according to claim 1, wherein the traction processing device is used for welding cleaning before traction strip steel annealing, and the obtaining of the remaining traction time of the traction processing device for traction of the remaining strip steel comprises:
acquiring the uncoiling traction speed of an uncoiler in the traction processing equipment and the current residual strip steel;
and obtaining the residual traction time of the uncoiler according to the uncoiling traction speed and the current residual strip steel.
6. The strip steel loop control method according to claim 1, wherein the target state is a full load state of the strip steel loop, and the preset time is 30 to 60 seconds.
7. The strip steel loop control method according to claim 1, wherein the traction processing device is used for pulling the strip steel to be subjected to smooth oiling after annealing, the strip steel loop is an outlet loop connecting an outlet of the annealing furnace and an inlet of the traction processing device, the target state is an idle state of the strip steel loop, and the obtaining of the remaining target time for the strip steel loop to reach the target state comprises:
acquiring the quantity of the outlet loop and the speed of the outlet loop;
acquiring the coiling traction speed of a coiling machine in the traction treatment equipment;
and obtaining the residual target time of the outlet loop according to the outlet loop quantity, the outlet loop drawing speed and the coiling traction speed.
8. The utility model provides a belted steel loop controlling means, its characterized in that is applied to the annealing and produces the line, the annealing is produced the line and is included pulling treatment facility, belted steel loop and annealing stove, pull treatment facility and be used for pulling the belted steel and anneal before the welding wash or anneal back level and smooth the fat liquoring, the device includes:
the first acquisition module is used for acquiring the residual target time of the strip steel loop reaching a target state, wherein the target state is a full-load or no-load state of the strip steel loop;
the second acquisition module is used for acquiring the residual traction time of the traction processing equipment for traction of the residual strip steel;
the first obtaining module is used for obtaining a current time difference according to the residual target time and the residual traction time;
the judging module is used for judging whether the current time difference is smaller than the preset time or not;
the first control module is used for controlling the annealing production line to run at the highest speed until the strip steel loop reaches the target state when the current time difference is smaller than the preset time;
and the second control module is used for controlling the annealing production line to operate at the current speed when the current time difference is not less than the preset time.
9. An electronic device comprising a processor and a memory coupled to the processor, the memory storing instructions that, when executed by the processor, cause the electronic device to perform the steps of the method of any of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012087355A (en) * | 2010-10-19 | 2012-05-10 | Jfe Steel Corp | Continuous annealing facility for thin steel sheet |
| CN103978045A (en) * | 2014-05-22 | 2014-08-13 | 邯钢集团邯宝钢铁有限公司 | Acid washing cold rolling combined unit inlet loop filling speed control method |
| CN204544966U (en) * | 2015-04-08 | 2015-08-12 | 首钢京唐钢铁联合有限责任公司 | A kind of cold rolling continuous product line |
| CN106399891A (en) * | 2016-11-21 | 2017-02-15 | 首钢京唐钢铁联合有限责任公司 | Treatment method for vertical loop of continuous hot galvanizing inlet section |
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- 2022-05-29 CN CN202210595378.5A patent/CN114990325B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012087355A (en) * | 2010-10-19 | 2012-05-10 | Jfe Steel Corp | Continuous annealing facility for thin steel sheet |
| CN103978045A (en) * | 2014-05-22 | 2014-08-13 | 邯钢集团邯宝钢铁有限公司 | Acid washing cold rolling combined unit inlet loop filling speed control method |
| CN204544966U (en) * | 2015-04-08 | 2015-08-12 | 首钢京唐钢铁联合有限责任公司 | A kind of cold rolling continuous product line |
| CN106399891A (en) * | 2016-11-21 | 2017-02-15 | 首钢京唐钢铁联合有限责任公司 | Treatment method for vertical loop of continuous hot galvanizing inlet section |
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